Mini game - Lava Wall

This is a remake of the mini game made by rooster teeth www.youtube.com/watch?v=3p-3ErUwRg0

they only made it on the xbox so i've made it for pc, i plan to do the same with a few other of their ideas, if you haven't heard of them i highly recommend looking at their videos, they're one of my favorite youtubers

This mini game is fairly simple to win be the first team to burn the other team's logo, to do this you must shoot fire charges from your dispensers. the rules are, only build with in the glowstone area, do not mine the floor you can only place and break blocks you place. The tnt is there to make a tnt cannon but as you don't have any water you'll have to be careful if you decide to make one

I don't know where you'll start on a server so the game is at x: 619 y: 57 z:-750

tell me what you think and if i should change anything.